This is the Cadillac Sixteen. It was made in 2003. It had a sixteen-cylinder engine, and was like a beacon of light shining out, a righteous declaration of Cadillac quality at the top of the world. Only one was made. Weird!

This is the Cadillac Ciel. It was made in 2011. The economy was picking up after the Great Recession. Good times, it seemed like, might be here again.

Also, it previewed the 4.2-liter V8 that Cadillac is soon to put into production in the CT6-V, among other things. It looked more feasible than ever, and stood out like a beacon of light shining out, a righteous declaration of Cadillac quality at the top of the world.